Update README.md

Cargo.toml

@@ -46,6 +46,8 @@ ar = "/usr/bin/x86_64-w64-mingw32-ar"
 linker = "/usr/bin/i686-w64-mingw32-gcc"
 ar = "/usr/bin/i686-w64-mingw32-ar"
 
+[target.aarch64-unknown-linux-gnu]
+linker = "aarch64-linux-gnu-gcc"
 
 [features]
 no-timeout = []

README.md

@@ -1,3 +1,4 @@
+<img src="https://git.pupes.org/PoliEcho/pea_2_pea/raw/branch/master/logo.svg" alt="Pea 2 Pea logo" width="196"></img>
 # Pea 2 Pea  
 very simple P2P VPN(Virtual Network yes, Private maybe),  
 this program is intended to help you play LAN games over internet and as proof of concept  
@@ -6,10 +7,14 @@ at least for now
 
 
 > [!WARNING]  
-> Piercing NAT may fail based on network configuration
+> Piercing NAT may fail based on network configuration minor bug fixes  
+
+> [!WARNING]    
+>  windows client does not work thanks to some tappers library issues
 
 ## how to run  
 > install rustc and cargo or rustup, you will need 2024 edition  
+> <b><span style='color: red;'>if using windows you need to get</span></b> [wintun](https://www.wintun.net/)  <b><span style='color: red;'>driver</span></b>  
 > build using  
 > ```bash
 > # to build

logo.svg

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src/client/main.rs

@@ -21,7 +21,8 @@ use crate::types::Network;
 struct Cli {
     #[arg(short = 'r', long = "registrar")]
     #[arg(help = "registrar ip address or hostname")]
-    registrar: String,
+    #[arg(required_unless_present = "version")]
+    registrar: Option<String>,
 
     #[arg(short = 'p', long = "registrar-port")]
     #[arg(help = format!("optional Port number for the registrar service (1-65535) Default: {}", SERVER_PORT))]
@@ -29,7 +30,8 @@ struct Cli {
 
     #[arg(short = 'n', long = "network-id")]
     #[arg(help = "your virtual network id that allows other people to connect to you")]
-    network_id: String,
+    #[arg(required_unless_present = "version")]
+    network_id: Option<String>,
 
     #[arg(short = 'P', long = "password")]
     #[arg(
@@ -52,9 +54,19 @@ struct Cli {
     symmetric_nat_bypass_mode: bool,
 }
 
+fn print_version() {
+    println!("Pea 2 Pea {}", VERSION);
+}
+
 fn main() -> std::io::Result<()> {
     let cli = <Cli as clap::Parser>::parse();
-    if cli.network_id.len() > 0xff {
+    if cli.version {
+        print_version();
+        exit(0);
+    }
+    let network_id = cli.network_id.unwrap();
+    let registrar = cli.registrar.unwrap();
+    if network_id.len() > 0xff {
         eprintln!("network id cannot have more then 255 charactes");
         exit(7); // posix for E2BIG
     }
@@ -81,11 +93,11 @@ fn main() -> std::io::Result<()> {
         })();
 
         #[allow(non_snake_case)] // i think this is valid snake case but rustc doesnt think so
-        let server_SocketAddr: core::net::SocketAddr = format!("{}:{}", cli.registrar, server_port)
+        let server_SocketAddr: core::net::SocketAddr = format!("{}:{}", registrar, server_port)
             .parse()
             .expect(&format!(
                 "{}:{} is invalid sock addr",
-                cli.registrar, server_port
+                registrar, server_port
             ));
 
         // query here
@@ -134,7 +146,7 @@ fn main() -> std::io::Result<()> {
                 &mut buf,
                 &server_SocketAddr,
                 &socket,
-                &cli.network_id,
+                &network_id,
                 &cli.password,
             ) {
                 Ok(n) => {
@@ -161,7 +173,7 @@ fn main() -> std::io::Result<()> {
                             None => false,
                         },
                         encryption_key,
-                        cli.network_id,
+                        network_id,
                         salt,
                         Vec::with_capacity(1),
                     );
@@ -174,6 +186,17 @@ fn main() -> std::io::Result<()> {
                         &iv,
                     )
                     .unwrap();
+
+                    let _ = net::send_heartbeat(
+                        // send heart beat to start periodic heart beat
+                        &mut buf,
+                        &server_SocketAddr,
+                        socket.clone(),
+                        &tmp_v_net,
+                        &public_sock_addr,
+                        &iv,
+                    );
+
                     tmp_v_net
                 }
                 Err(e) => {

src/client/net.rs

@@ -727,6 +727,9 @@ pub async fn handle_incoming_connection(
                 "[SUCCESS]".green()
             );
         }
+        x if x == ServerMethods::HEARTBEAT as u8 => {
+            println!("{} heart beat recive confirmed", "[OK]".green());
+        }
         _ => {
             eprintln!(
                 "{} unknown method ID: 0x{:02x}, Droping!",
@@ -738,6 +741,7 @@ pub async fn handle_incoming_connection(
 }
 
 pub fn periodic_heart_beat(socket: Arc<UdpSocket>, send_buf: Box<[u8]>, dst: SocketAddr) {
+    println!("{} periodic heartbeat started", "[LOG]".blue());
     loop {
         std::thread::sleep(std::time::Duration::from_secs(30));
         println!("{} sending heartbeat to server", "[LOG]".blue());

src/lib.rs

@@ -4,7 +4,7 @@ pub const SERVER_PORT: u16 = 3543;
 pub const UDP_BUFFER_SIZE: usize = 65527;
 pub const IP_BUFFER_SIZE: usize = 65535;
 pub const DEFAULT_TIMEOUT: u64 = 30;
-pub const VERSION: &str = "v1.0";
+pub const VERSION: &str = "v1.1.1";
 pub const BLOCK_SIZE: usize = 16;
 pub const STANDARD_RETRY_MAX: usize = 10;
 

src/server/net.rs

@@ -64,7 +64,7 @@ pub async fn handle_request(
 
             let registration = match registration_vector
                 .iter()
-                .find(|elem| elem.map(|s| &s.net_id == &net_id)) // find if id exists
+                .find(|elem| elem.map(|s| &s.net_id == &net_id && !s.invalid)) // find if id exists
             {
                 Some(registration) => registration,
                 None => {futures::executor::block_on(send_with_count(socket, &src ,&[ServerResponse::ID_DOESNT_EXIST as u8]));
@@ -163,7 +163,7 @@ pub async fn handle_request(
 
             match registration_vector
                 .iter()
-                .find(|elem| elem.map(|s| &s.net_id == &net_id)) // find if id exists
+                .find(|elem| elem.map(|s| &s.net_id == &net_id && !s.invalid)) // find if id exists
             {
                 Some(_) => {
                         futures::executor::block_on(send_with_count(socket, &src, &[ServerResponse::ID_EXISTS as u8]));
@@ -216,7 +216,25 @@ pub async fn handle_request(
                     .collect::<String>(),
             );
 
-            registration_vector.push(types::Registration::new(
+            let mut first_invalid_registration: Option<usize> = None;
+
+            for (i, reg) in registration_vector.iter().enumerate() {
+                if reg.map(|r| r.invalid) {
+                    first_invalid_registration = Some(i);
+                    break;
+                }
+            }
+            match first_invalid_registration {
+                Some(i) => registration_vector[i].update(|r|{*r = types::Registration::new(
+                net_id.clone(),
+                client_sock_addr.clone(),
+                encrypted,
+                chrono::Utc::now().timestamp(),
+                salt,
+                iv,
+                src
+            );}),
+                None => {registration_vector.push(types::Registration::new(
                 net_id,
                 client_sock_addr,
                 encrypted,
@@ -224,7 +242,9 @@ pub async fn handle_request(
                 salt,
                 iv,
                 src
-            ));
+            ));},
+            };
+
             send_with_count(socket, &src, &[ServerMethods::REGISTER as u8]).await;
             #[cfg(debug_assertions)]
             println!("network registered");